Hormonal Control of Polyribosome Formation in Barley Aleurone Layers 1
AUTOR(ES)
Evins, Warren H.
RESUMO
The addition of abscisic acid to barley (Hordeum vulgare L. cv. Himalaya) aleurone layers at the same time as gibberellic acid completely prevents the gibberellin-induced increases in the percentage of polysomes, the formation of polyribosomes, and the synthesis of α-amylase, even when the molar concentration of gibberellic acid is four times greater than the concentration of abscisic acid. The addition of abscisic acid to aleurone cells producing α-amylase (midcourse addition) inhibits the further synthesis of α-amylase and decreases the percentage of polysomes but does not change the number of ribosomes per cell.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=365963Documentos Relacionados
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